package XueXi;

public class Demo01 {
    public static void main(String[] args) {
        /*
        输出 a ~ z , 与大写 Z ~ A
         */
        for (char c1 = 'a';c1 <= 'z';c1++){
            System.out.println(c1+" ");
        }
        for (char c1 = 'Z';c1 >= 'A';c1--){
            System.out.println(c1+" ");
        }
    }
}
